Why do inlet radiator hoses (lower) usually have a spiral steel wire molded into them?
What will be an ideal response?
To prevent collapse due to the suction action of the coolant pump impeller
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Electrical contractors typically employ _____.
a. commercial electricians b. electrical inspectors c. maintenance electricians d. E&I technicians
Technician A says that when a CNG commercial vehicle is serviced in a facility not specifically designed for NG vehicles, 50% of the roll-up doors must be raised at least 12-inches (25cm) from the ground. Technician B says that when a CNG commercial vehicle is serviced in a facility not specifically designed for NG vehicles, the extraction and ventilation system must be turned on a be capable of exchanging 5 times the total shop volume of air per hour. Who is correct??
A. ?Technician A only B. ?Technician B only C. ?Both A and B D. ?Neither A nor B
The refrigerant lines for single zone mini-split air conditioners are usually connected by:
A) Brazed connections. B) Reflok fittings. C) SAE compression fittings. D) Flare fittings.
The device that is used on refrigeration systems to keep moisture from forming on cabinet surfaces is called a(n) ____________________.
Fill in the blank(s) with the appropriate word(s).